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    J Virol. 2005 Nov;79(21):13829-36.

    Kaposi's sarcoma-associated herpesvirus latency-associated nuclear antigen induces a strong bend on binding to terminal repeat DNA.

    Wong LY, Wilson AC.

    Department of Microbiology, New York University School of Medicine, 550 First Avenue, New York, NY 10016, USA.

    During latency, the Kaposi's sarcoma-associated herpesvirus genome is maintained as a circular episome, replicating in synchrony with host chromosomes. Replication requires the latency-associated nuclear antigen (LANA) and an origin of latent DNA replication located in the viral terminal repeats, consisting of two LANA binding sites (LBSs) and a GC-rich sequence. Here, we show that the recruitment of a LANA dimer to high-affinity site LBS-1 bends DNA by 57 degrees and towards the major groove. The cooccupancy of LBS-1 and lower-affinity LBS-2 induces a symmetrical bend of 110 degrees . By changing the origin architecture, LANA may help to assemble a specific nucleoprotein structure important for the initiation of DNA replication.

    PMID: 16227305 [PubMed - indexed for MEDLINE]

    PMCID: 1262613

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